His sisters, and a lady called Miss Watson, are all trying to get him to improve his behaviour and his manners, and stop coming across as a street urchin!
Neither of them had time to speak, however, before there was a tap at the door, and the spokesman of the street Arabs, young Wiggins, introduced his insignificant and unsavoury person.
Of course it was uphill work at first, and Jo made queer mistakes, but the wise Professor steered her safely into calmer waters, and the most rampant ragamuffin was conquered in the end.